This is a temporary fix to #1 . Clients without Fabric API will be able to join, others will need to install this mod on the client as well.
The changelog can be found here.
Developer information
Projects on Modrinth are automatically available through a Maven repository for use with JVM build tools such as Gradle.
maven { name = "Modrinth"; url = "https://api.modrinth.com/maven" }